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Small Cube Error Reported by XGR++. Why?

Posted By: Taper_Mike
Date: Friday, 7 February 2014, at 1:02 p.m.

In Response To: Small Cube Error Reported by XGR++. Why? (Henrik Bukkjaer)

In the XG Help system, go to the Search tab and enter XGRoller (no spaces). Then click List Topics. The first item displayed contains this information:

XGRoller
The XG Roller levels setting relies on truncated rollouts to estimate the position. This has been proven to be an extremely efficient way to analyze a position. For instance a level like XGRoller+ is much stronger but faster than a 5-ply analysis.

Here are the settings used for the different levels of XGRoller

XGRoller
42 Games using VR with rotation on 21 dice
Truncated after 5 moves using 1-ply
All decisions in 1-ply

XGRoller+
360 games with VR
Truncated after 7 moves using 2-ply
Stop when reaching 0.010 Confidence (minimum 180 games)
First 2 decision in 2-ply
Then 1-ply checker and 2-ply cube

XGRoller++ Checker
360 games with VR
Truncated after 5 moves using 3-ply
First 2 decisions in 3-ply
Then 2-ply checker and 3-ply cube

XGRoller++ Cube
360 games with VR
Truncated after 7 moves using 3-ply
Stop when reaching 0.010 Confidence (minimum 180 games)
First 2 decisions in 3-ply
Then 2-ply checker and 3-ply cube
Mike

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